A substance has a heat of fusion of 155 J/g. How many joules of energy are required to be removed in order to freeze a 10.0 g sa mple?
1 answer:
1550J
Explanation:
Given parameters:
Heat of fusion = 155J/g
Mass of sample = 10g
Unknown:
Quantity of heat removed to freeze the substance =?
Solution:
This is a phase change problem and we apply the formula for the specific heat of fusion to solve the problem:
Q = mL
m is the mass of the substance
L is the specific heat of fusion of the substance.
We then plug the parameters into the equation:
Q = 155J/g x 10g = 1550J
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specific heat brainly.com/question/7210400
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